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[Bug 1857540] [NEW] GIMP-CRITICAL: gimp_item_get_image: assertion 'GIMP_IS_ITEM (item)' failed

 

Public bug reported:

```
GNU Image Manipulation Program version 2.10.14
git-describe: GIMP_2_10_12-511-ga4f55d6c7e
C compiler:
	Using built-in specs.
	COLLECT_GCC=gcc
	COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
	OFFLOAD_TARGET_NAMES=nvptx-none
	OFFLOAD_TARGET_DEFAULT=1
	Target: x86_64-linux-gnu
	Configured with: ../src/configure -v --with-pkgversion='Ubuntu 7.4.0-1ubuntu1~18.04.1' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-7 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
	Thread model: posix
	gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1) 

using babl version 0.1.72 (compiled against version 0.1.72)
using GEGL version 0.4.18 (compiled against version 0.4.18)
using GLib version 2.56.4 (compiled against version 2.56.4)
using GdkPixbuf version 2.36.11 (compiled against version 2.36.11)
using GTK+ version 2.24.32 (compiled against version 2.24.32)
using Pango version 1.40.14 (compiled against version 1.40.14)
using Fontconfig version 2.12.6 (compiled against version 2.12.6)
using Cairo version 1.15.10 (compiled against version 1.15.10)

```
> GIMP-CRITICAL: gimp_item_get_image: assertion 'GIMP_IS_ITEM (item)' failed

Stack trace:
```

# Stack traces obtained from PID 1402 - Thread 1402 #

[New LWP 1405]
[New LWP 1406]
[New LWP 1407]
[New LWP 1408]
[New LWP 1409]
[New LWP 1410]
[New LWP 1411]
[New LWP 1412]
[New LWP 1413]
[New LWP 1415]
[New LWP 1451]
[New LWP 1462]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f83fb27c384 in __libc_read (fd=21, buf=0x7ffde9ba7b20, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
  Id   Target Id         Frame 
* 1    Thread 0x7f84000aae00 (LWP 1402) "gimp-2.10" 0x00007f83fb27c384 in __libc_read (fd=21, buf=0x7ffde9ba7b20, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
  2    Thread 0x7f83f1736700 (LWP 1405) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  3    Thread 0x7f83f0f35700 (LWP 1406) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  4    Thread 0x7f83f0734700 (LWP 1407) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  5    Thread 0x7f83eff33700 (LWP 1408) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  6    Thread 0x7f83ef732700 (LWP 1409) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  7    Thread 0x7f83eef31700 (LWP 1410) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  8    Thread 0x7f83ee730700 (LWP 1411) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  9    Thread 0x7f83ded49700 (LWP 1412) "gmain" 0x00007f83faf8ebf9 in __GI___poll (fds=0x561631103610, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  10   Thread 0x7f83de548700 (LWP 1413) "gdbus" 0x00007f83faf8ebf9 in __GI___poll (fds=0x561631159330, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  11   Thread 0x7f83b75c0700 (LWP 1415) "async" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  12   Thread 0x7f83b6dbf700 (LWP 1451) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  13   Thread 0x7f83b5dea700 (LWP 1462) "paint" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

Thread 13 (Thread 0x7f83b5dea700 (LWP 1462)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x0000561630452ccf in ?? ()
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83b5dea700) at pthread_create.c:463
        pd = 0x7f83b5dea700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140203668711168, 8073677002576571142, 140203668707584, 0, 94653375769680, 140728524766352, -8139097681309914362, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 12 (Thread 0x7f83b6dbf700 (LWP 1451)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd12cdad in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83b6dbf700) at pthread_create.c:463
        pd = 0x7f83b6dbf700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140203685312256, 8073677002576571142, 140203685308672, 0, 94653370336496, 140728524757328, -8139099902344877306, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 11 (Thread 0x7f83b75c0700 (LWP 1415)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x000056163069036c in ?? ()
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83b75c0700) at pthread_create.c:463
        pd = 0x7f83b75c0700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140203693704960, 8073677002576571142, 140203693701376, 0, 94653314231456, 140728524768944, -8139103201416631546, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 10 (Thread 0x7f83de548700 (LWP 1413)):
#0  0x00007f83faf8ebf9 in __GI___poll (fds=0x561631159330, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimised out>
#1  0x00007f83fba785c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fba78962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f83fcc010e6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f83fb2726db in start_thread (arg=0x7f83de548700) at pthread_create.c:463
        pd = 0x7f83de548700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204347524864, 8073677002576571142, 140204347521280, 0, 94653312658992, 140728524769024, -8138907372382770426, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#6  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 9 (Thread 0x7f83ded49700 (LWP 1412)):
#0  0x00007f83faf8ebf9 in __GI___poll (fds=0x561631103610, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimised out>
#1  0x00007f83fba785c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fba786dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f83fba78721 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f83fb2726db in start_thread (arg=0x7f83ded49700) at pthread_create.c:463
        pd = 0x7f83ded49700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204355917568, 8073677002576571142, 140204355913984, 0, 94653312658832, 140728524768640, -8138906279850464506, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#6  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 8 (Thread 0x7f83ee730700 (LWP 1411)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83ee730700) at pthread_create.c:463
        pd = 0x7f83ee730700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204617959168, 8073677002576571142, 140204617955584, 0, 94653311564256, 140728524768832, -8138942887467341050, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 7 (Thread 0x7f83eef31700 (LWP 1410)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83eef31700) at pthread_create.c:463
        pd = 0x7f83eef31700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204626351872, 8073677002576571142, 140204626348288, 0, 94653311564176, 140728524768832, -8138941777755165946, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 6 (Thread 0x7f83ef732700 (LWP 1409)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83ef732700) at pthread_create.c:463
        pd = 0x7f83ef732700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204634744576, 8073677002576571142, 140204634740992, 0, 94653311564096, 140728524768832, -8138945076826920186, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 5 (Thread 0x7f83eff33700 (LWP 1408)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83eff33700) at pthread_create.c:463
        pd = 0x7f83eff33700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204643137280, 8073677002576571142, 140204643133696, 0, 94653311564016, 140728524768832, -8138943975704679674, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 4 (Thread 0x7f83f0734700 (LWP 1407)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83f0734700) at pthread_create.c:463
        pd = 0x7f83f0734700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204651529984, 8073677002576571142, 140204651526400, 0, 94653311563936, 140728524768832, -8138964866962478330, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 3 (Thread 0x7f83f0f35700 (LWP 1406)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83f0f35700) at pthread_create.c:463
        pd = 0x7f83f0f35700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204659922688, 8073677002576571142, 140204659919104, 0, 94653311563856, 140728524768832, -8138963765840237818, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 2 (Thread 0x7f83f1736700 (LWP 1405)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f83fbabe77f in g_cond_wait () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f83fd0f4fc3 in ?? () from /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3  0x00007f83fbaa0195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f83fb2726db in start_thread (arg=0x7f83f1736700) at pthread_create.c:463
        pd = 0x7f83f1736700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140204668315392, 8073677002576571142, 140204668311808, 0, 94653311563776, 140728524768832, -8138967064911992058, -8138989433986405626}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x00007f83faf9b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 1 (Thread 0x7f84000aae00 (LWP 1402)):
#0  0x00007f83fb27c384 in __libc_read (fd=21, buf=0x7ffde9ba7b20, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:27
        resultvar = 18446744073709551104
        sc_cancel_oldtype = 0
        sc_ret = <optimised out>
        sc_ret = <optimised out>
        nbytes = 256
        resultvar = <optimised out>
        resultvar = <optimised out>
        __arg2 = <optimised out>
        _a3 = <optimised out>
        resultvar = <optimised out>
        resultvar = <optimised out>
        __arg2 = <optimised out>
        _a3 = <optimised out>
        fd = 21
        __arg3 = <optimised out>
        __arg3 = <optimised out>
        buf = 0x7ffde9ba7b20
        _a1 = <optimised out>
        _a1 = <optimised out>
        sc_ret = <optimised out>
        __arg1 = <optimised out>
        _a2 = <optimised out>
        sc_cancel_oldtype = <optimised out>
        __arg1 = <optimised out>
        _a2 = <optimised out>
        sc_ret = <optimised out>
        resultvar = <optimised out>
        resultvar = <optimised out>
        __arg3 = <optimised out>
        __arg2 = <optimised out>
        __arg1 = <optimised out>
        _a3 = <optimised out>
        _a2 = <optimised out>
        _a1 = <optimised out>
        sc_cancel_oldtype = <optimised out>
        resultvar = <optimised out>
        resultvar = <optimised out>
        __arg3 = <optimised out>
        __arg2 = <optimised out>
        __arg1 = <optimised out>
        _a3 = <optimised out>
        _a2 = <optimised out>
        _a1 = <optimised out>
#1  0x00007f83fe6edda0 in gimp_stack_trace_print () from /usr/lib/libgimpbase-2.0.so.0
No symbol table info available.
#2  0x00005616303c5afa in gui_message ()
No symbol table info available.
#3  0x000056163068d12c in gimp_show_message ()
No symbol table info available.
#4  0x00005616303bb8ab in ?? ()
No symbol table info available.
#5  0x00007f83fba7f1cd in g_logv () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f83fba7f33f in g_log () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x000056163071a15a in gimp_item_get_image ()
No symbol table info available.
#8  0x00005616304ba927 in ?? ()
No symbol table info available.
#9  0x00005616304bac83 in gimp_display_shell_canvas_tool_events ()
No symbol table info available.
#10 0x00007f83ff72e38b in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#11 0x00007f83fbd5310d in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007f83fbd6605e in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#13 0x00007f83fbd6e0af in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007f83fbd6f12f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#15 0x00007f83ff8442bc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#16 0x00007f83ff72c62c in gtk_propagate_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#17 0x00007f83ff72ca2b in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#18 0x00007f83ff3a202c in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#19 0x00007f83fba78417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#20 0x00007f83fba78650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#21 0x00007f83fba78962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#22 0x00005616303bb470 in app_run ()
No symbol table info available.
#23 0x00005616303bad3c in main ()
No symbol table info available.

```

** Affects: gimp (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Edubuntu
Bugsquad, which is subscribed to gimp in Ubuntu.
https://bugs.launchpad.net/bugs/1857540

Title:
  GIMP-CRITICAL: gimp_item_get_image: assertion 'GIMP_IS_ITEM (item)'
  failed

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